The Guildpact

(this spell also costs {w/b}{w/u}, plz cardsmith add a max
number of mana symbols instead of a max number of letters to type)Hexproof, Ascend
{t}, {1}: Search your library for a Gate and put it
onto the battlefield untapped.
Dual colored spells cost {5} less to cast.
If you control 10 dual colored gates of different
names you win the game.